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Finding the Third Proportional to 8,223 and 12,207.50

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Solution

The third proportional to 8,223 and 12,207.50 is: 18,122.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,223 : 12,207.50 = 12,207.50 : x
  2. Step 2: Convert to fraction form
    8,223/12,207.50 = 12,207.50/x
  3. Step 3: Cross multiply
    8,223x = 12,207.50 × 12,207.50
  4. Step 4: Simplify right side
    8,223x = 149,023,056.25
  5. Step 5: Solve for x
    x = 149,023,056.25/8,223
  6. Step 6: Final answer
    x = 18,122.71

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.